Home / 809,251.20-1,213,706.70-409,516.20

Finding the Fourth Proportional to 809,251.20, 1,213,706.70 and 409,516.20

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Solution

The fourth proportional to 809,251.20, 1,213,706.70 and 409,516.20 is: 614,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,251.20 : 1,213,706.70 = 409,516.20 : x
  2. Step 2: Convert to fraction form
    809,251.20/1,213,706.70 = 409,516.20/x
  3. Step 3: Cross multiply
    809,251.20x = 1,213,706.70 × 409,516.20
  4. Step 4: Simplify right side
    809,251.20x = 497,032,555,698.54
  5. Step 5: Solve for x
    x = 497,032,555,698.54/809,251.20
  6. Step 6: Final answer
    x = 614,188.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.